
1) Craft 2) Craftsmanship 3) Workmanship
Found on
https://www.crosswordclues.com/clue/tradecraft

Tradecraft, within the intelligence community, refers to the techniques used in modern espionage and generally, the activity of intelligence. This includes general topics or techniques (dead drops, for example), or the specific techniques of a nation or organization (the particular form of encryption used by the NSA, for example). The term tradecr...
Found on
http://en.wikipedia.org/wiki/Tradecraft

[
n] - skill acquired through experience in a trade
Found on
http://www.webdictionary.co.uk/definition.php?query=tradecraft
noun skill acquired through experience in a trade; often used to discuss skill in espionage; `instructional designers are trained in something that might be called tradecraft`; `the CIA chief of station accepted responsibility for his agents` failures of trade...
Found on
https://www.encyclo.co.uk/local/20974
No exact match found.